package com.show.design.patterns.demeter;

import java.util.ArrayList;
import java.util.List;

public class TeamLeader extends Course {
  public void checkNumberOfCourses() {
    List<Course> courseList = new ArrayList<>();
    for (int i = 0; i < 20; i++) {
      courseList.add(new Course());
    }
    System.out.println("在线课程的数量是: " + courseList.size());
  }
}
